Trait basic_dsp_vector::FrequencyDomainOperations [−] [src]

pub trait FrequencyDomainOperations<S, T> where S: ToSliceMut<T>, T: RealNumber {
    fn mirror<B>(&mut self, buffer: &mut B) where B: Buffer<S, T>;
    fn fft_shift<B>(&mut self, buffer: &mut B) where B: Buffer<S, T>;
    fn ifft_shift<B>(&mut self, buffer: &mut B) where B: Buffer<S, T>;
}

Defines all operations which are valid on DataVecs containing frequency domain data.

Failures

All operations in this trait set self.len() to 0 if the vector isn't in frequency domain and complex number space.

Required Methods

This function mirrors the spectrum vector to transform a symmetric spectrum into a full spectrum with the DC element at index 0 (no FFT shift/swap halves).

The argument indicates whether the resulting real vector should have 2*N or 2*N-1 points.

Example

use basic_dsp_vector::*;
let mut vector = vec!(1.0, 2.0, 3.0, 4.0, 5.0, 6.0).to_complex_freq_vec();
let mut buffer = SingleBuffer::new();
vector.mirror(&mut buffer);
assert_eq!([1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 5.0, -6.0, 3.0, -4.0], &vector[..]);

Swaps vector halves after a Fourier Transformation.

Swaps vector halves before an Inverse Fourier Transformation.

Implementors